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Pacific Northwest GigapopPacific Northwest GigapopNGN OverviewNGN Overview
Kampala, Uganda
Oct. 16th - 17th 2007
Properties of Previous Properties of Previous ArchitectureArchitecture
Primary/Secondary Layer-2 CoreLayer-2 core is actually required due to IBGP
filtering and next-hop reachability requirements
Different routing tables instantiated on different physical hardware
Few 10 Gbps capable devices No formal Layer-2 service offering
Previous Routing ViewsPrevious Routing Views
Two Route Views Full -- Containing:
Participants R&E Peers Internet2 NLR Commodity Peers Commodity Transit
Commercial -- Containing: Participants R&E Peers NLR Commodity Peers Commodity Transit
Properties of Previous Routing Properties of Previous Routing ViewsViews
Overlapping route types (e.g. Commodity Transit exists in both)
Primarily differentiated by inclusion or exclusion of Internet2 routes
Makes use of route servers for routing table aggregation
Uses IBGP filtering for creation of additional routing tables (instantiated on different hardware)
Previous Layer-3 ServicesPrevious Layer-3 Services
Full Participant Contains: Participants, R&E Peers, NLR, I2, Com Peers, Com Trans Built via unfiltered IBGP feeds from the “Full” route servers
Commodity Participant Contains: Participants, R&E Peers, NLR, Com Peers, Com Trans Built via unfiltered IBGP feeds from the “Com” route servers
R&E Participant Contains: Participants, R&E Peers, NLR, I2, Com Peers Built via filtered IBGP feeds from the “Full” router servers
Internal Participant Contains: Participants, R&E Peers, NLR, Com Peers Built via egress EBGP filtering of the Commodity Participant view
Properties of Next Generation Properties of Next Generation ArchitectureArchitecture
Layer-3 Routed Core Platform and topology agnostic routing tables
Any service on any router Almost all devices support 10 Gbps interfaces Core can migrate to 40 Gbps as needed Formal Layer-2 aggregation and grooming
infrastructure Completely updated hardware
Support for up to 1.2 million IPv4 routes
Next Generation Network Next Generation Network Routing ViewsRouting Views
Four Route Views Commercial -- Containing:
Participants Commodity Peers Commodity Transit
Research -- Containing: Participants R&E Peers
Internet2 -- Containing: Participants Internet2
NLR -- Containing: Participants Internet2
Internet2 AUP is handled by inclusion/exclusion of INTERNET2 VRF
GP participants themselves have control over which national research backbone they wish to send/receive traffic
Properties of Next Generation Properties of Next Generation Network Routing ViewsNetwork Routing Views
No overlapping route types (except Participants which exist in both)
Differentiated by external network connections with a research focus versus a non-research focus
Uses MPLS Layer-3 VPNs to instantiate the two routing table views, anywhere in the topology on any platform
Uses EBGP filtering to create additional routing table views on a per-participant basis
Next Generation NetworkNext Generation NetworkLayer-3 ServicesLayer-3 Services Full Participant
Contains: Participants, R&E Peers, NLR, I2, Com Peers, Com Trans Unfiltered EBGP feeds from both “Commercial” and “Research” VPNs
Commodity Participant Contains: Participants, R&E Peers, NLR, Com Peers, Com Trans Unfiltered EBGP feed from the “Commercial” VPN Filtered EBGP feed from the “Research” VPN (I2 filtered)
R&E Participant Contains: Participants, R&E Peers, NLR, I2, Com Peers Filtered EBGP feed from the “Commercial” VPN (Com Trans filtered) Unfiltered EBGP feed from the “Research” VPN
Internal Participant Contains: Participants, R&E Peers, NLR, Com Peers Filtered EBGP feed from the “Commercial” VPN (Com Trans filtered) Filtered EBGP feed from the “Research” VPN (I2 filtered)
Comparison of Layer-3 Comparison of Layer-3 Participant Connectivity ModelsParticipant Connectivity Models
Existing route views are provide via one consolidated connection for all destinations
NGN route views use two VPNs provisioned over separate logical links using 802.1q or Frame Relay Encapsulation
Next Generation Network Next Generation Network Additional FeaturesAdditional Features
Commercial and Research VPNs are provided to the participant separately to allow for differential handling
Layer-2 lightpath grooming can be provided with connectivity to PacificWave, NLR FrameNet, and Internet2
Intermediate Ethernet aggregation for shared access Layer-3 services